Wheeled cultivator



Aug. 2s, 1923.

466,346 f A. L. POLLARD ET AL WHEELED cuLTxvAToR 'Filed Nov. so, 1921 5 sheets-shea 1 W4 fi) mm Aug. 2s, ma.' www@ L.. POLLARD ET AL.

WHEELED CULTI VATOR` Aug. 28, E923.A 1,46%.340

, A. L?. POLLARD ET AL WHEELED v CULTIVAT'OR v Filed Nov. so. 1921 5 sheets-sheet :s

50 1921 5 Sheets-Sheet 4 @fA/af ven Slow' Aug. 2s; w23.

A. L. POLLARD LET AL v WHEELED CULTIVATOR Filed Nov.

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- A. L. POLLARD ET AL wHEELEp cuLTrvATo Filed Nov. 3o 192.1

5 Sheets-Sheet 5 Patented Ang. 28, i923.

ARTHURL. romarin Ann ERNEST insturen, or ee'revmanw Yoan, Assremogs' To Messer-Hanan Harwnsrnrtooivrrany, me., or' BA'rAvIA,.'NnW Yonien CORPORATION lor New. Yoan.

Application led November 30, 1921. Serial No. '518,9/Jr3. i

This invention relates 'to' a wheeled culti-V vator and more vparticularly tov-that type of wheeled cultivatorsin which the wheels and cutivating tools are capable of beingturned laterally at will in either direction for the purpose of causing the tools to adapt themselves to rows of plants whicliare arranged in a straight line, hut which deviate more orless from such aline.

lts purpose is to provide acultivator of this character whereby the wheels and .cultivator tools `may loe easily adjusted at `will with a minimum expenditure of manual lahor while the machine is traveling foiwardly and to accomplish thisV by 'means which are comparatively simple in vconstruction, not liable to get out of order andcapahle of being produced at low cost.

Figure l is a top plan` view of a wheeled eultivator embodying our improvements and showing the parts'in the position whichv they occupy when the supportingl wheels and cultivator tools are moving forwardly in a line parallel with the line of :draftf` Figure 2 is a similar view showing the supporting wheels and the cultivator tools ar.-A

ranged in the position which they occupy when the mechanism isl adjusted for causing .the same to travel forwardly at an rangleto the line of draft while adapting the position of the tools to a lateral deflection inthe row of plants which are being cultivated. Figure 3 is a longitudinal section orelevation of the machine taken through thecene tral part of the same and showing Athe cultivater tools lowered into their operativeposition. l1`ig`ure @L is a similar view showing the cultivatoitools elevated into their inoperative position. Figure 5 is a cross section taken on line 5 5, Fig. 6. vFigure 6 is a fragmentary longitudinal sect-ion, onV an enlarged scale, taken on line 6-6, Fig. 2. Figure 7 is a fragmentary horizontal section, on an enlarged scale, takenonline 7 7 Fig,

4. -FigureS is a vert-ical 'section taken onl line 8-8, Fig. 7 Figure 9 is a fragmentary l perspective view ofthe partof ythe mecha,-

nism for controlling the angularity of .the forward movement ofthe supporting .wheels and tools relative tothedraft line of. the Y machine. y f

Similar characters of reference referto like partsthroughout the several views.

vAlthough the main -fi' ame,ofv this vwheeled cultivatormay be variously constructed, that shown in the drawings is preferred and Ias there shown the Asame comprises a. main cross piece or bar 10,;a longitudinal pole 11 projecting forwardly from fthe central vpart of this cross piece and adapted to hev connected with a tract-or or draft,` animal for pulling the machine forwardly over the ground, two inner longitudinal sills A12 around. opposite sides of the longitudinal center of the `machine, having theirvfront ends spaced apart a considerable distance and 'secured to the upper side of the cross piece 10 while theirfrear ends are arranged closer together `and connectedwith each other7 two outer longitudinal sills 33 which have their front end portions '3ft converged" forwardly and secured to the crossl piece l() and the pole 1l, longitudinalxseat bars l1 3 connected at -their front ends with the rear endsof the inner longitudinalsills y12 anda seat 14 for the driver or operato\r.,mo;unted on the rear parts of the seat hars 13.

15, 15v represent the supporting wheels of the cultivator which are 'arranged on the opposite longitudinal sides' of the saine rear of the cross piece l0,v and 16,116 two gangs of cultivat-or tools, such asY plo-ws` or shovels whiclrare. shown inthe dra-wings` von and whichfare arranged side by side from Opposite sides .ofr the longitudinal centerline of the machine and adjacent to the inner sides of the supporting wheels. MeansV are providedfor mounting' the .supporting wheels On the main frame of thevcultivato-r," so as to, permit of balancing the machine Y when raising-and lowering the `cultiwator tools and also-to permit of either arranging these supporting. wheelsgfparallelfwith vthe line of draft' when it is desired'tof move straight forward or to change the angleof these wheels so'as to cause the cultivator to travel obliquely forward eitherv toward ,onel

side or the other of the machine, when itis desired to change the coursel of the tools y and adapt the same to a crook in the row ott plants which is being cultivated. The preterred means Afor thus adjusting the wheels, which are shownin the drawings, are constructed as follows:

Arranged between the cross piece 10 and the seat lil is a horizontal body V 17 of a crank axle Vwhich body is joiirnaled in suitable bearings 18 on the adj acentI parts et the outer trame sills 33 and provided atY its opposite ends belweeni'heseframe sills and the sup'- 'porting wheels with downwarily projecting arms 1 9. l ach ot the wheels is pivotally mounted on the axle so afs-to be capable ot rotation about a horizontal transverse axis "for moving` Llforwardly as well ias turning about a vertical laxis tor. theV purpose ot causing the wheel to be moved forwardly atan angle relativeto the longitudinal draft line.V

g Y l liiits preferred form, each or thesemountings comprises an upright. steering shait 2O which is journ aled in. suitable bearings 2l on the adjacent axle arms 19, a horizontal spindle 22 which projects laterally troni the lower end oic the steering shatt 20, upon which'one ot the supporting wheels is'j ouri naled, and a horizontal steering ai'ni 22 projecting horizontally Jiforward troni the upper end ot the steering shaft 20. These two wheel moiintings are .operatively connected so that they work in unison andi always cause the supporting wheels to bcvmaintained in'parallelisni, this being preferably accomplished 'by means ot a horizontal steering bar 2a arranged transversely below the traine' sills l2"and connected at its opposite ends with the trent ends ot the steering` arinY 23,

as shownl in Figs. 1., 2,3, 4 and 9;

Villieiithe supporti (Y wheels are parallel l u l l t) n Y -with the line ot dra'li, as shown inA Fig. l,

Y the cultivator as a whole travels straight 'forwardly together with the cultivator tools which is the normal position ot the parts when the rows et plants which are being cultivatedy are straight or comparatively7 so.

l-hen, however, the li'ows oi plants are delectedv to one side` or the other, the siipporting wheels are-turned about their axes atan angle towardl one side or the other of the machine so ras to carry the cultivating Jfools in the corresponding direction to suitY a deviation in the line ot the row lot plants,

l@ 2 showing the iliarts in .auchan angular position toi the purpose oi" cultivating a roiv ot the plants whichiletlect toward the lett ot thest aight line.,V The position oiitlie wheels is preit'erablyl-inaniially controlledy Yfor' this purpose bj ineanso' two toot le s 25.25,y which are arrangedon opposn sides of the center v,ofthe machine in trentini the seat and pii'oted at their upper ends to the trame sills 12 by means oi' bolts 26 or oi'fherwise7 sothat these le vers are capable of swinging tor-V wardly and backwardly, the pedal or treadle is seated on the seat lll,

tion shown in Fig. 2, which causes the culti* vater to travel obliquely :forward towardthe lett, while upon pressing the righthand toot lever '25 forwardly, the steering` rmechanismV will be operatei'l torl ca-iisingthe ciiltivator to travel. obliqiiely forward toward the right with reterenceto the line of draft. f

Each gang 'of cultivatortools is mounted upon the rear end or a draft beam which maybe variously constructed, but which inv its preferred ''ormcomprises two longitudinal drag bars or draw bars 29, 30 upon the rear ends oit which the tools are mounted iny any suitable manner, and the front ends et which are mounted on the main trame oi the machine in such a manner that two gangs ot tools may be moved vertically either simultaneoiisly or independently ot each other and also move laterally torcorrcspond with theV angular movement'o't the supporting wheels, and also adjustedl transversely rel vely to each other for the purposeo'f va ying the space betweeii the two gangsot tools in order to adapt the same to the distant-.ebe- Y tween adjacent rows of plants or other conditions, The preferred means' 'for thus mounting the draft beams ou the main trame are constructed as follows: Y

rThe numeral 31 designates a horizontal guide har which is arranged transversely adjacent to the rear side or the cross piece 10 and lixed on the main frame so as to be stationary or immovable relatively thereto, but

secured at opposite ends of this guide bar to Y brackets 32 on the adjacent parts ot' the cross piece and the outer longitudinal trame sills 33. Y

` rlhe numerals 35, 'designate tvodraw heads or draft heads which are arranged on the guide bars 31 on opposite sides oi the longitudinal center ot the machine, each ol'i which is provided at its opposite ends with l V 1earwardly projecting lugs 13G y iront ends ot the bars 29 and 30 `on one el? the di'aitV beams are secured. Tne'giiide bai' 3l. is pi'e'terabl y round andy the bores ot' theand di'att heads are also ot vcylindrical `torni these draw heads are capable out moving lengthwise upon this. `guide bar crosswise ot the machine and lso turning "vertically thereon. engagement or these Vdraw'heads with the guide bar Y horizontal to which the.

ln order Vto relieve Vthe Vrictional without interfering with their.. longitudinal movement oir this ment thereon, each of these draw heads is lprovided adjacentto its opposite ends with a pair of anti-friction rollers 36, the niembers ot each pair ot these rollers being` plv` oted on one end ot the respective draw head so that they are transversely in line, andl each ot the anti-friction rollers being` pro-l vided between its opposite ends with a circumferential groove 37 which engages with a considerable part of the periphery ofthe guide bar 3l and thereby forms an effective guide therefor which will relieve the frictionv and avoid undue wear upon the partsso that the saine will. always work easily when the parts require shifting.

On the central part ot the guide bar 3l. between the draw 4heads 1s mounted an adjusting block or head 38 which is alsocapable oi sliding lengthwise on thebar crosswise ot the machine a-ndalso turning in a vertical plane about the same. On its underside this adjusting; block 3S is provided with a coupling eye or loop 39 which l Vment ot the shifting` rods A50, 5l relative to 'thedrawing heads, the outer end ot each ot opens tore and att and torins part. of the means whereby the steering bar 24 is connected with the adjusting block 38 and the parts associated therewith. `The additional parts ot this coupling device consists ot a yoke which in the preterred 'torni is made up ot two rearwardly diverg'ing yoke bars 4() which are connected at their rear ends with ears 4l projecting forwardly troni the steering` bar 24 while the trent ends oi these yoke bars terminate in a coupling` tongue 43 which projects 'forwardly through the'couplingeye or loop 39, this tongue and the yoke bars being preferably constructed from a. single piece ot round iron, as best shown in Figs. 5. G, '7 and 9. f

TJpon shitting the steering bars 24 horizontally and crosswise ot the machine toward one side thereof or the other, the coupling yole 40 causes the adjusting block 38 to move lengthwise on the guide bar 3l in the same measure by engagement of the tongue 4? t this yoke with the coupling eye 390i the adjusting,v block. This fmovement of the adjusting` block is transmitted to the draw heads 35 by 4means ot intermediate connectingr mechanism so that the two draw beams and the tools mounted thereon are moved laterally in one direction or the other relatively to the line ot draft, which intel mediate mechanism is preferably so constructed that the same also serves as adjustingy means tor varying' the spaced relation.

between thevtwo sets or gangs ot toolslon the drattbeams In its preterred 'forni this'adjustable shitting' mechanism between the adjustingblock 38 and the two draw` heads a.rranged on opposite `sides ofthe same are.

constructed as follows:

The numeral 44 represents a longitudinal adjusting shaft which is journaled atk its front end in bearings 45 and 46 arranged. on the upper part of lthe adjusting block 38 and provided at its rearend with a handle 47 i whereby the same may be n'ioved lengthwise and also tirned in its bearings by the operator, for willich purpose the handle 47 is arranged within convenient reach, while the operator is occupyingVV the seat 14. In rear of the'rear bearing 46 the adjusting 'shalt is provided with two adjusting` arins 48, 49 which projectrad-ially `trom opposite sides thereof, the upper arm projecting` upwardly and being connected by a 'shitting link or rod- 50 with the left Vhand draw head while the `lower arm 49fp`rojects downwardly and is connected with theright hand draw head 35, Upon turning the adj usting` shaft 44 the two draw heads canbe moved toward or from each other and thus vary the space between ythe same in accordance with the distance between the rows of plants which are Jtobe-cultivated. i

ln order to ctliect a preliminary adjustthese shifting rods is provided with a pin 52 which may be engaged with one oranother of the transverse row oil. openings 53 'tormed on the flange and projecting rearwardly from the lower part. ot the respective d ranY head asbestshown in Figs.V 7,8 and 9. By shitting' these pins 52 ot these rods Ytrom one opening 53 in these-draw heads to anotlie1,the Vinitial adjustment of the two draw beams may be effected in accordance with the charac-ter `oli thetools which are employed,jthe character of the crops which are being cultivated, or any other condition, Atter such adjustmentthe two draw heads and the cultivatinptools associated there with are held in a definite relation to each -e other `,by means of a locking` mechanism which preferably comprises a locking lugo-4 projecting` outwardly fromthe rearwardly projecting flange on theadjusting block 38 and a locking' gear segment 55 arrann'edon the adjusting shaft 44 and adapted to engage onel or another of. its teeth with the locking tooth 54. Ff or the vpurpose ot ad- 1 justine; .the two gangs of eultivator tools transversely relatively to each other the adjustine] shaftv 44 is `tirst pulled rearwardly so as to disengage its gearsegnnent 55 from the` locking' lug 54, then this adjusting shaft'tv isturned until the two gangs ot tools are moved into-the desired position relative to eachother, then the adjusting shaft is again moved forwardly sol as to engage the space between two of its teeth with the locking` lug; 54, whereby the tool gangs are locked .in spaced A relationV crossfwis'e of the machine. The near segment 55 andthe' ,adjusting arms 48and 49 are preferably Vformedintegrally witlLeaCh other,-as shown inMFig. 6 `and seyseo Ya pin or any othersuitable means.

cured to the adjusting shaft Il by means of The gear segn'ient is preferably held yielding-ly inen- Y gagement with the locking tooth 54e, this being; accomplishedV in the present instance, means or aspring` 56 surroundingl the adjustine;` shaft let and bearing,` at its rear end Vend bearsl against the rear.bearing` il?) while its front against a collar T secured Vto this adjustingsha'tt. llpon turning the adjusting' shaft rearwardly the spring 56 vis coin-- pressed Vand upon releasing the rearward. pull of the adjustin'r,r sha'iit the spring 56 inoves the saiiie 'forwardly and lcauses the locking segment to automatically engage the lockinglug` 54;. r:lie forward movement.

of the adjusting shaft la may he limited in various ways tor instance, as shown in'lFig,

S by'engag'ement oit the gear segment 55 with' the rear side oi the bearing` 46 and the enp'agrem'entot' the collar 57 vwith the rear side. ot the bearing 45.

VJhen the adjusting' shalt el is thus interlo'clred with the adjustingv blocl?` 38, the latter and the draw heads are compelled to move crosswise oi the machine in unison, 'during which `iiioveniient the adj usti n g block and the draw heads slide lengthwise upon the ,Ljuide rod 31, atransversemovement of the adjustingV head and draw bars ini-A parted to the saine by the yoke Lil-0. 43, which Y couples the adjustinev head 38 with the steeringr bar 2l so that whenever Vthe operator moves the steeringhair crosswise oll he niachine, for angling` the supporting' wheels in one'direction or the other, a corresponding movement will beimparted to the two sets or of tools so that as the supporting' wheels travel obliquely forward toward vone 'side or the other of the line of draft tor' carrying the oi' tools in a corresponding' direction to adapt themselves 'to any crookedness in the row of plants, a straight forward pull will Valwavs be imparted to Ythese tool gangs regardless of the position ot' the same transversely ol the machine.

Y Means are provided for raising and lowerine' each 'gang of tools independently ot the other for bearing' the pressure of Ythe saine against the ground, as well as permitting` these ganbs to be operated sin'iultaneously rang `Up'oneach of these sleeves 5) is mounted an' .transmitted to one of the draft beams by4 individual pressure lever which is capable oit/swinging forwardly and backwardly, this lever being held indifferent positions relative to this shaft 58 by means of a locking pawl 64 mounted on this lever and adapted to he ei ment 65 formed on or connected with the adjiisting,` sleeve59. Upon swinging` the pressure lever downwardly this movement is means of a pressure rod 62 which is connected at its upper end with. a bracket 63 on the respective pressure' lever, and apressure spring surrounding` this pressure rod and hearing at itsiipper end against a collar 7l on the pressure rod while its lower end bears against a cross piece 72 on the re spoot-ive draft bean". The upward move ment ot the pressure rod 62 relative to the respective draft beam is 'limited by means ot a sere nut 'T3 on thek lower end of the pressure rod G2 and adapted to bear against the underside et the plate 72 on the respective drai't beam, as best shown in Fig. 3.

' `When it is desired to raise the drai't beams and ciiltivator tools thereon into an inoperative position above the ground 'for con venience in transporting; the cultivator, the.`

pressure shat 5S is turned so that its upper si de moves Jforwardly by means of a lit'tiiig` lever 6T which is connected with the pres- ,tire shaiit near one end thereof, vfor in'- staiice, adjacent to the right hand end, as shown in Figs. l and 2, this lever being tained in its forward position and the draft beams in their elevated position Vby means otA a catch G8 arranged on this main or mast lever G7 and engaged with a loc-king' gear segii'icnt 69 on the adj acent part ot the main trame. llurino; this Jforward movement the master lever C7 the pressure levers 6() are caused to turn with the pre sure shalt 58 and the master lever by reason ofthe pressure levers having' their locking;` pawls or catches Gil in engagement with the toothed loc-ting segment (Sorso that these parts at this time turn as a unit whereby .the pressure rods 62 are caused to litt the tool carrying` draft beams by engagement ot the nuts 73 atlthe lower ends ot the pressure rods 62 with the underside ot' the pressure plate 72.

ln order to balance the wei ght of' thedratt beams and assist lthe operator in hitting the same, springs are provided, each ot which is connected at its rear end with the bracket 63 on one ot the pressure levers while its front end is connected with an adj aeent part oit the main Jifi-anic as shown in Figs1-4.

For tlie'purpose of balancing` the .weight oit the several parts of the machine more eftectively on the ,supporting wheels while transportingv the machine in an inactive condition, means arerprovided for drawing the supporting' wheels rea rwardlyfroni the position which they occupy during the cultiraged with a toothed` locking seg.-

iie

vat-ing operations and thereby Acause these wheels to be located more nearly inline with the center ot the road in a direction tore and att or'v the machine, while' merely transportingI the saine. A convenient means for accomplishing this purpose consists in ,providing the opposite ends otthe pressure shaft 5S with two downwardly projecting shitting" arms l2, each ot which is connected by means et a link or rod with the down-V wardly projecting axle arm 19 on the adjacent end of the axle body 17, as'bestshown in F l ft, whereby upon moving t-he master or main lever 67 `forwardly-tor turning, the pressure shaft, the arms of the axle and the supporting wheels mounted thereon would be shifted Ytrom a nearly upright and forward position, as shown in 3, to a greater rearwardly Yinclined and rearward position, as shown in Fig. 4, so that in' this last-mentioned position the weight ot the several parts of lthe cultivator is more uniformly distributed in front and rear or" the axesvof the supporting wheels. During such forward and rearward adjustment ot" the supporting` wheels, the operative connection between the steering; bar 24 and the adjusting block 38 is not disturbed, inasmuch asV the tongue t3 on the coupling yoke, at this time, merely slides lengthwise in the coupling eye 39 and is tree to roclr vertically therein for adapting it to a changed position of these parts without producingany binding action.

The improvements of this wheeled cultivator not only permit ot easily and conveniently operatingV the same, but the same are also very durable, not lilrely to get out ot order,r and capable ot being produced at comparatively low cost.

l claim as my invention:

l. A wheeled cultivator comprising' a main trame, a horizontal `guide liar fixed transversely on said main trame, an adjustim,r block which is slidable lengthwise' on the central part ot said `guide bar, draw heads slidable on said guide bar on opposite sides ot the adjusting block, draw barsr pivotally connected with said draw heads so as to be capable of swinging vertically relatively thereto but compelled to move laterall;7 therewith` and means for adjustably connecting said draw heads with said adjustine block. y

2. A wheeled cultivator comprisingy a main trame, a horizontal `auide bar lixcd transversely on said main frame, an adjusting block which is slidable lengthwise on the central part ot said guide bar, drawT heads slidable on said guide bar on opposite sides of the adjusting block, draw bars pivotally connected with said draw heads so as to be capable et' swinging vertically relatively thereto but compelled to move` laterally therewith, means for adjustably connectinjg Vsaid draw heads with said adjustingl b'locln'and means tor simultaneously means for ladjusting said drawheads relaingr'an adjusting' shat't journaled on said block and havingv 'arms projectingin opposite directions, links connecting said arms with said heads. respectively, and means Jfor locking: said ,L adjusting shaft in its adjust-. inlsiposition comprisinb a lugarranged on said' bloclnfand a locking' gear segment arranged on said shaft and adapted to engage one or another of the spaces between its teeth with said lug.

il; A wheeled cultivator comprising a main frame, an axle mounted on said frame, supporting; wheels, rmeans for mounting said wheels on said axle so that the :same can turn about a vertical axes, a steering bar connectinej said wheel mounting means, a guide rod'lixed on the main trame, an adjustine` block slidable on the guide rod and connected with said steeringr bar, draw heads slidable on said guide bar on opposite sides ot said adj ustinnr block, draw bars connect- I ed with said draw heads and provided with cultivatm' tools` and adjusting means connecting said draw heads with said adjusting? block. i

A wheeled cultivator comprisinga main trame, au axle mounted on said trame, supporting"wheels` means tor mountiiuir said wheels on said axle so that the same can turn about vertical axes, a steering bar connecting' said wheel mountingV means, a guide rod fixed on the main Jrame, an adjusting` block slidable ou said Ihide bar, coupline; means connected with said steeringbar and engag- 'inga with said adjusting block so as to coinpel said steering' bar to move therewith in a direction lengthwise ot' the Quidc bar but permittiimy said steering bar to move independently of said block in direction at right angles to said I`(guide bar, draw heads slidable on said I'uide bar on opposite sides of said adjusting block, adjusting' meansconnectiug' said draw heads with said adjustinet block` and draw` bars connected with said draw heads and provided. with cultivat-or tools. Y

transversely on said' trame, an adjusting 'block yslidahlel lengthwise on the central fpart ot said bar, draw heads slidable lengthwise on said bar on opposite sides of said 'lbloclndraw bars connected with vsaid heads and' adapted to carry cultivatortools,'and

Ytively to each other and jsaid bloclr compris- 1 eo ,j

(. A wheeled cultivator comprisingr i a @E Y e .rod lined onthenain frame, an .adjusting 'liloel slidaiiie on said-guide bar and prov'vided "with a coupling eye, a coupling yoke connect-ed at its rear end With said steering bar and provided at itsV frontend with a coupling tongue which is arranged in Said eye.y draw heads slidable lengthWSe on Said guide har on opposite sides of said block, draw bars Connected with said draw heads and provided with eultivator tools,"and adjusting means Connecting said draw heads with said block. Y'

7. A Wheeled ei'iltivator comprising a n'iain frame, a crank axle 'having a horizontal hodyY jonrnaied on the rearpart of the frame and provided with depending arme, wheel monntings each having an upright crank Shaft journaled on one of said axle arms, a spindle projecting laterally from the vlower-end of the crank shaft and a steering arm projecting forwardly from said crank Shaft, Wheels journaled on said spindles, a

Steering bar conrrieetingsaid 'steering arms7V a guido b:,-i'-iixed on the lront partv ot Vthe main frame, an adjusting block slidable on theeentral `part of Saidguidebar, coupling. n'ieans connecting said Vadjusting block and "the machine independently of said adjust block, draw headsis'lidabie on Said guider 'bar' on opposite sidesv of said adjusting block, adjusting means connecting said ad` justing block with said draw heads, draw bars connected at their front vends with said draw heads and provided on their rear parte Y with eultivator tools, and means for shifting said steerino bar erosswlse of the ma-V chine.

ARTHUR L. romani). ERNEST BASEMANY' 

